Draw a timeline from the year -500 to 1700 CE, showing approximate dates for important astronomical discoveries. Who made each discovery?
Draw a timeline showing the evolution of the universe from the big bang until 10 billion years in the future, including as many important phenomena as possible. Show the life cycle of the sun, the geolological history of the Earth, and the evolutionary history of life.
Draw a diagram showing the relative sizes of the following objects:

The planets, including Pluto
The Earth's moon
Jupiter's moons Io, Europa, Ganymede, and Callisto
Saturn's moon Titan
Neptune's moon Triton
Pluto's moon Charon
The asteroid Ceres
Eris, the Kuiper belt object

Draw a diagram showing the distances of the following objects from the sun.

The planets, including Pluto.
The asteroid belt and Kuiper belt.
The boundary for ice (the "snow line").
The boundary for frozen nitrogen.

Draw a diagram illustrating why the Earth has seasons.
In one plot, show the spectrum for:

A blackbody at 300 Kelvin
A blackbody at 6000 Kelvin
The three color vision cells of the human eye
Photosynthesis

Draw a diagram illustrating the Earth's greenhouse effect.
What evidence for heliocentrism existed before the invention of the telescope? What new evidence did Galileo discover by using a telescope?
Draw a diagram showing the orbits of the Earth and Mars. Draw the trajectory of a Hohmann maneuver to get from Earth to Mars.

List the hazards to life for someone on the surface of Mars.

For the atmospheres of the Earth, Mars, and Titan, what is:

The approximate pressure in bars (Earth = 1 bar).
The most abundant gas molecule.

Other than the the gas giants, which objects in the solar system have a magnetic field large enough to block the solar wind?
Draw a diagram illustrating why the Earth has 2 high tides and 2 low tides per day.
Draw a diagram showing how a converging lens works.
Why can't the Concorde aircraft fly into space?
What are the differences between the Keck telescope and the Pan-STARRS telescope? What can the Pan-STARRS telescope find that the Keck can't?
What are the reasons for why the center of Antarctica is a good place for a telescope?
List as many skeletal features you can think of that are common to all tetrapods.
The speed of sound is 340 meters/second. What is the wavelength of a 220 Hertz sound wave?
(String) A cello "A-string" is .695 meters long and has a frequency of 220 Hertz. What is the speed of a wave on this string?
Suppose you're a science pop star. What would you say to an audience about "The Multiverse" hypothesis?